Sink waste fitting



Nov. 7, 1950 c. R. STONE EI'AL SINK WASTE FITTING 2 Sheets-Sheet 1 Filed June 20, 1946 @2351? Jfa ,ZZZddfd/fidr 27y W 73- O 1950 c. R. STONE ETAL 2,528,919

SINK WASTE FITTING Filed June 20, 1946 2 Sheets-Sheet 2 wen Z0715" Qnl fozze I mardgiwb fiwa @WQ .7

Patented Nov. 7, 1950 SINK WASTE FITTING Carl R. Stone and Edward A. Fredrickson, Chicago, Ill., assignors to Crane (10., Chicago, 111., a corporation of Illinois Application June 20, 1946, Serial No. 678,046

This invention is concerned with waste fittings or the like, and more particularly it relates to a waste fitting usually employed with a sink or similar fixture.

One of the more important objects of this invention is to provide a construction whereby the normal installation of a waste fitting to asink is greatly simplified by eliminating the usual lock nut and gasket union connection;

"' To date there have been complaints that the present type of large lock nut employed in this type of installation is undesirable and in many' cases the triple union waste connections do not seemto be "justified. The unusually large lock nut-necessarily used on this type of fittingin the past has been difficult to tighten as well as to-loos'en and italso required considerable space fort-he manipulation of a large wrench required to handle the lock nut, andof course inthe cramped quarters beneath asinkit has 'beenincreasingly troublesome. Also general practice 'at present provides for three different union connections on the-waste outlet'thereby making the installation somewhat-complicated to install, expensive and difiic'ultto service'whennecessary.

In-contrast to the difficulties heretofore experiencedfthe current'contribution features simplicityfeconomy and ease f installation and maintenance. The relative simplified installation is obtained becauseonly a small screwdriver vertically applied is required in attaching-a complete wastefitting to the sink. With one union connection eliminated entirely. the chances of leakage are obviously reduced substantially;

' "Another important object is to provide a device of the character hereinafter described at length in which the parts are relatively lightweight and preferably made of pressed or forged materials; thereby avoiding theuse of theprevious costly castings. V

"A further important object is to provide a construction in which'the valve seat for the waste plug is easily accommodated in pressure-tight relation tothe sink cup and also in which the outer shell 'is conveniently guided during the course'of eifecting such seal.

Another object is to provide a structure in which" the waste plug in combinationmay be immediatelylretained and maintained movable forfsubsequnt inspection or replacement. Q

Other objects and advantages will become more apparent upon proceeding, with the specification and read in light of the references to the drawingsin which i 3 Claims. (Cl. 285--37) Ill) Fig. 1 is a fragmentary sectional assembly view of a preferred embodiment of the invention.

Fig. 2 is a sectional view taken on the line 22 of Fig. 1.

Fig. 3 is a fragmentary sectional view of a modified form of the invention.

Fig. 4 is a fragmentary sectional view of a further modified form.

Similar reference characters refer to like parts throughout the several views.

Referring to Fig. l, the numeral l refers generally to the fragmentary portion of a sink structure provided with the usual vitreous enamel coating 2 and having the conventional tapering drain opening 3 within which a tubular form of cup member 4 is applied having its upper circular flange portion 5 supported upon the walls of the drain opening 3. At a lower portion of the cup member 4, a well 6 is provided within which the seat member I is closely positioned and is preferably held by an annular solder joint on its outer and lower periphery between the well and the seat, preferably having the frustoconical portion formed at 8 to receive a conventional drain plug (not shown). The lower portion of the well 6 is apertured to permit the projection therethrough of the lower extension 9 of the seat 1. The inner portion of the extension 9 is arranged to receive relatively closely the discharge or waste tubing l I which is preferably attached by a solder connection to the member I to hold the tubing against rotational or axial displacement as well as to provide a fluid tight seal between tubing and seat. Fitted snugly around the outside of the tubing II and preferably attached by means of a solder connection is the flanged sleeve l2. The latter member may be attached to the seat extension 9 separately or to the tubular member H or both. The horizontally extendingflanged annular portion of the member I2 is suitably tapped at annular spaced intervals to receive the screws l3. should be noted that before positioning the latter screws in the flanged sleeve l2 as shown, a shell member I4 having an inwardly extending flanged portion I5 is placed over the assembly heretofore described. At its lowermost portion it is provided with complementary aligned apertures Hi to receive the screws [3, as shown more clearly in Fig. 2. At the upper end of the outer shell l4 an outwardly extending flange I1 is formed preferably integral therewith to support the gasket I8 for its compression contact with aperture 3.

mally seats on the annular surface 8 in a manner similar to that illustrated and described in U. S. Patent: 2,263,537 granted November 18, 1941, to E. A. Fredrickson, thereby permitting the plug to be held in a raised position for drain,

purposes or in a seated position when fitted within the recesses 2| in order to allow water to be retained within the sink or lavatory for dish washing purposes, bathing and the like.

Thus in operation it will be apparent that the connection between the waste fittingof .our in:

vention and the sink is easily maintained by sim:

ply tightening the screws l3 uniformly and thereshown in Fig. 3, thecup 22 is provided t bear against the sink suriace inthe usual manner and as described in connection with Fig. 1'. At its lower portion it is also arranged with an integral extension Z3 which isinwardly flangedas at 24 to support the seat 25, the latter member being'held in sealed relation thereto preferably by means of the upper and lower annular 'solder connections at 26 and Y27 respectively. The seat member725 differs from the construction inFig. 1 inthat it is provided with the threaded tubular extension 28 ,for atta-chment of the usual tubing 29 by means of the union nut SI and the interposed gasket -32. The latter extension may be dispensed with as a separate elementby making the tubing wintegral with theextended portion .28. rather than usinga threaded connection as illustrated.

Depending from the lower end exterior portion of the extension 23 of the cup 22;, is the flange 33 'which'is attachedto the cup preferably [by means of the annularly extending solder sealed connection '34.

ly extending flanged portion 35 tapped at'predeterm-ined spaced apart portions on the annular periphery to receive the screws 1 3. The shell M similarly provided with the flanged portion 11 is also arranged with the apertures I5- within which to shoulder the screws I3 and thereby compress the gasket 18, as described in connection with Fig. 1. For purposes hereinafter described, the lowermost'portion of the shell M is preferably pr-o Vided with the reduced annular extension I0. It has been found desirable, although not absolute.-

ly essential, to provide for convenient guiding of.

the outer shell i4 during the course of assembly and tightening. This is accomplished by arrang- Referring now to the modified construction The lowermost portion *of the flanged member 33 is provided with .the outwardter as indicated at the annular shoulder 38. A fluid sealing connection is preferably applied at 39. The latter shoulder supports the valve seat 4| which has a threaded extension 42 for coupling to the threaded union ring 43 and the gasket 44 interposed against the end of the flanged tubing 29. At the lower end portion of the extension 3'! an annular flange 4 5 is provided which is tapped at spaced apart intervals to accommodate the screws 13, the latter being shouldered against the outer end of the shell M in the manner described in connection with Fig. 1 to thereby compress the gasket l8 between its flange H and the under annular portion of the sink aperture 3. Thus it will be apparent that in another simple and effective manner means are provided to support the valveseat 4!, aswell as to provide for fluid seal tightness between the waste fitting and the lower portion of the sink adjacent the outlet 3.

Thus from the several modifications suggested and illustrated, it should be-apparent that the application of our invention may assume numere ous forms. It is desired therefore to be limited only to the extent prescribed by the appended claims. I

Weclaim: V

1. Ina waste outlet fitting, a cup-like member within an annular flange supportable within a drain opening, a valve seat within the cup member held against axial movement, the said seat having a downwardly extending portion with a lower depending tubing connected thereto, a flange. member cooperating with the said cuplike member, an apertured shell enclosing respectively a substantial portion of the said seat, cup like member and flange and having ,an upper annular member arranged to bear annularly around the drain opening, the said a-pertured shell being relatively clqsely guided annularly by the said cup-like member, a plurality of threaded attaching means annularly positioned to engage the said flange member, the threaded portion of saidattaching means being-concealed by said apertured shell, the means for actuating said attaching means engaging an outer end portion of said apertured shell to draw-the latter member against the annular portion of the drain opening upon predetermined actuation Of the said threaded attaching means.

2; In a sink waste fitting or the like, a hollow cup member secured within a drain opening, .a seat within the cup member, said seat having a lower extending portion, a lower depending tubular member associated withsa'id seat, .a flange member cooperating withthe said seat, a cylindrical shell having an upper flange outwardly extending to contact against the lower ,part of the sink adjacent the drain opening, sealing means interposed between said'sh'ellyand the sink, the lower end of the said cylindrical shell being flanged inwardlyand providing for a plurality of tightening means engageable with the said first named flange member to efiect assembly with a sink, the means on the tightening means e'ngageable with the said flange member being enclosed by the sai'dishell and with an end actuating portion of said tightening means bearing against a transverse surface portion "of the cylindrical shell, the actuating means of said tightening means being accessible from an end portion of said shell without removal of the latter member. v V q I 3. In agsink'wa'ste fitting 'or'the like, a hollow cup member secured within a drain opening of the sink, an annular seat mounted in leakproot relation within the cup member, said seat having a lower extending portion, a lower depending tubular member connected with said seat, a flanged sleeve snugly fitted around the tubular member and connected with a lower end portion of the said seat, a substantially cylindrical outer shell having an upper flange outwardly extending to abut against the lower part of the sink immediately adjacent the drain opening, sealing means interposed between the abutting flange of said shell and the sink, the lower end of the said cylindrical outer shell being flanged inwardly and being provided with a plurality of annularly spaced-apart tightening means engageable with the said flanged sleeve member to effect assembly with the sink, the portion of the tightening means engageable with the said flange member actuating portion of the tightening means being accessible from an end portion of said outer shell.

CARL R. STONE. EDWARD A. FREDRICKSON.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 2,225,693 Frances Dec. 24, 1940 2,278,566 Schaible Apr. "7, 1942 

